问:Symfony2 - Doctrine - Class xxx不是一个有效的实体或映射的超类

我在过去看到过很多关于这个主题的问题，但没有一个有有效的解决方案。我在看Symfony的书和食谱。我在其中一个示例中使用doctrine来填充getter/setter方法，但是当我试图在另一个示例中重复它时，它不起作用。当我回到前面的练习时，它也停止工作了。

的命令

php app/console doctrine:generate:entities AppBundle/Entity/User

给出错误

[学说' ORM映射' ' MappingException]
类"AppBundle'Entity'User"不是一个有效的实体或映射的超类。

的命令

php app/console doctrine:mapping:info

给出错误

(异常)根据当前配置，您没有任何映射的Doctrine ORM实体。如果你有实体或映射文件，你应该检查你的映射配置是否有错误。

这是正在讨论的类:

<?php
namespace AppBundle'Entity;
use Doctrine'ORM'Mapping as ORM;
use Symfony'Component'Security'Core'User'UserInterface;
/**
* @ORM'Entity(repositoryClass="AppBundle'Entity'UserRepository")
* @ORM'Table(name="app_users")
*/
class User implements UserInterface, 'Serializable {
    /**
    * @ORM'Column(type="integer")
    * @ORM'Id
    * @ORM'GeneratedValue(strategy="AUTO")
    */
    private $id;
    /**
    * @ORM'Column(type="string", length=25, unique=true)
    */
    private $username;
    /**
    * @ORM'Column(type="string", length=64)
    */
    private $password;
    /**
    * @ORM'Column(type="string", length=60, unique=true)
    */
    private $email;
    /**
    * @ORM'Column(name="is_active", type="boolean")
    */
    private $isActive;
    public function __construct(){
        $this->isActive = true;
        // may not be needed, see section on salt below
        // $this->salt = md5(uniqid(null, true));
    }
    public function getUsername(){
        return $this->username;
    }
    public function getSalt(){
        // you *may* need a real salt depending on your encoder
        // see section on salt below
        return null;
    }
    public function getPassword(){
        return $this->password;
    }
    public function getRoles(){
        return array('ROLE_USER');
    }
    public function eraseCredentials(){
    }
    /** @see 'Serializable::serialize() */
    public function serialize(){
        return serialize(array(
            $this->id,
            $this->username,
            $this->password,
            // see section on salt below
            // $this->salt,
        ));
    }
    /** @see 'Serializable::unserialize() */
    public function unserialize($serialized){
        list (
            $this->id,
            $this->username,
            $this->password,
            // see section on salt below
            // $this->salt
        ) = unserialize($serialized);
    }
}

在config.yml:

中的Doctrine配置

    # Doctrine Configuration
doctrine:
    dbal:
        driver:   pdo_mysql
        host:     "%database_host%"
        port:     "%database_port%"
        dbname:   "%database_name%"
        user:     "%database_user%"
        password: "%database_password%"
        charset:  UTF8
        # if using pdo_sqlite as your database driver:
        #   1. add the path in parameters.yml
        #     e.g. database_path: "%kernel.root_dir%/data/data.db3"
        #   2. Uncomment database_path in parameters.yml.dist
        #   3. Uncomment next line:
        #     path:     "%database_path%"
    orm:
        auto_generate_proxy_classes: "%kernel.debug%"
        naming_strategy: doctrine.orm.naming_strategy.underscore
        auto_mapping: true

我AppKernel.php

    <?php
use Symfony'Component'HttpKernel'Kernel;
use Symfony'Component'Config'Loader'LoaderInterface;
class AppKernel extends Kernel
{
    public function registerBundles()
    {
        $bundles = array(
            new Symfony'Bundle'FrameworkBundle'FrameworkBundle(),
            new Symfony'Bundle'SecurityBundle'SecurityBundle(),
            new Symfony'Bundle'TwigBundle'TwigBundle(),
            new Symfony'Bundle'MonologBundle'MonologBundle(),
            new Symfony'Bundle'SwiftmailerBundle'SwiftmailerBundle(),
            new Symfony'Bundle'AsseticBundle'AsseticBundle(),
            new Doctrine'Bundle'DoctrineBundle'DoctrineBundle(),
            new Sensio'Bundle'FrameworkExtraBundle'SensioFrameworkExtraBundle(),
            new AppBundle'AppBundle(),
            new Acme'DemoBundle'AcmeDemoBundle(),
            new Acme'TestBundle'AcmeTestBundle(),
        );
        if (in_array($this->getEnvironment(), array('dev', 'test'))) {
            $bundles[] = new Symfony'Bundle'DebugBundle'DebugBundle();
            $bundles[] = new Symfony'Bundle'WebProfilerBundle'WebProfilerBundle();
            $bundles[] = new Sensio'Bundle'DistributionBundle'SensioDistributionBundle();
            $bundles[] = new Sensio'Bundle'GeneratorBundle'SensioGeneratorBundle();
        }
        return $bundles;
    }
    public function registerContainerConfiguration(LoaderInterface $loader)
    {
        $loader->load($this->getRootDir().'/config/config_'.$this->getEnvironment().'.yml');
    }
}

编辑:

此外，我尝试用Doctrine在相同的bundle和命名空间中生成一个新实体，没有出现任何问题。尝试使用doctrine:generate:entities再次访问该实体(在添加@ORM' entity和所有这些之后)再次给我同样的错误。所以文件名和命名空间都是正确的

php app/console doctrine:generate:entities AppBundle:User